622747365440 has 28 divisors (see below), whose sum is σ = 1482917164716. Its totient is φ = 249098946048.

The previous prime is 622747365433. The next prime is 622747365463. The reversal of 622747365440 is 44563747226.

It can be written as a sum of positive squares in 2 ways, for example, as 490268836864 + 132478528576 = 700192^2 + 363976^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973042439 + ... + 973043078.

Almost surely, 2^622747365440 is an apocalyptic number.

It is an amenable number.

622747365440 is an abundant number, since it is smaller than the sum of its proper divisors (860169799276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622747365440 is a wasteful number, since it uses less digits than its factorization.

622747365440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946085534 (or 1946085524 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 50.

The spelling of 622747365440 in words is "six hundred twenty-two billion, seven hundred forty-seven million, three hundred sixty-five thousand, four hundred forty".